// ℹ️ Extracted from https://developer.mozilla.org/en-US/docs/Web/CSS/named-color
export const namedColors = Object.freeze({
  // CSS Level 1
  black: '#000000',
  silver: '#c0c0c0',
  gray: '#808080',
  white: '#ffffff',
  maroon: '#800000',
  red: '#ff0000',
  purple: '#800080',
  fuchsia: '#ff00ff',
  green: '#008000',
  lime: '#00ff00',
  olive: '#808000',
  yellow: '#ffff00',
  navy: '#000080',
  blue: '#0000ff',
  teal: '#008080',
  aqua: '#00ffff',

  // CSS Level 2
  orange: '#ffa500',

  // CSS Level 3
  aliceblue: '#f0f8ff',
  antiquewhite: '#faebd7',
  aquamarine: '#7fffd4',
  azure: '#f0ffff',
  beige: '#f5f5dc',
  bisque: '#ffe4c4',
  blanchedalmond: '#ffebcd',
  blueviolet: '#8a2be2',
  brown: '#a52a2a',
  burlywood: '#deb887',
  cadetblue: '#5f9ea0',
  chartreuse: '#7fff00',
  chocolate: '#d2691e',
  coral: '#ff7f50',
  cornflowerblue: '#6495ed',
  cornsilk: '#fff8dc',
  crimson: '#dc143c',

  // synonym of aqua
  cyan: '#00ffff',

  darkblue: '#00008b',
  darkcyan: '#008b8b',
  darkgoldenrod: '#b8860b',
  darkgray: '#a9a9a9',
  darkgreen: '#006400',
  darkgrey: '#a9a9a9',
  darkkhaki: '#bdb76b',
  darkmagenta: '#8b008b',
  darkolivegreen: '#556b2f',
  darkorange: '#ff8c00',
  darkorchid: '#9932cc',
  darkred: '#8b0000',
  darksalmon: '#e9967a',
  darkseagreen: '#8fbc8f',
  darkslateblue: '#483d8b',
  darkslategray: '#2f4f4f',
  darkslategrey: '#2f4f4f',
  darkturquoise: '#00ced1',
  darkviolet: '#9400d3',
  deeppink: '#ff1493',
  deepskyblue: '#00bfff',
  dimgray: '#696969',
  dimgrey: '#696969',
  dodgerblue: '#1e90ff',
  firebrick: '#b22222',
  floralwhite: '#fffaf0',
  forestgreen: '#228b22',
  gainsboro: '#dcdcdc',
  ghostwhite: '#f8f8ff',
  gold: '#ffd700',
  goldenrod: '#daa520',
  greenyellow: '#adff2f',
  grey: '#808080',
  honeydew: '#f0fff0',
  hotpink: '#ff69b4',
  indianred: '#cd5c5c',
  indigo: '#4b0082',
  ivory: '#fffff0',
  khaki: '#f0e68c',
  lavender: '#e6e6fa',
  lavenderblush: '#fff0f5',
  lawngreen: '#7cfc00',
  lemonchiffon: '#fffacd',
  lightblue: '#add8e6',
  lightcoral: '#f08080',
  lightcyan: '#e0ffff',
  lightgoldenrodyellow: '#fafad2',
  lightgray: '#d3d3d3',
  lightgreen: '#90ee90',
  lightgrey: '#d3d3d3',
  lightpink: '#ffb6c1',
  lightsalmon: '#ffa07a',
  lightseagreen: '#20b2aa',
  lightskyblue: '#87cefa',
  lightslategray: '#778899',
  lightslategrey: '#778899',
  lightsteelblue: '#b0c4de',
  lightyellow: '#ffffe0',
  limegreen: '#32cd32',
  linen: '#faf0e6',

  // synonym of fuchsia
  magenta: '#ff00ff',

  mediumaquamarine: '#66cdaa',
  mediumblue: '#0000cd',
  mediumorchid: '#ba55d3',
  mediumpurple: '#9370db',
  mediumseagreen: '#3cb371',
  mediumslateblue: '#7b68ee',
  mediumspringgreen: '#00fa9a',
  mediumturquoise: '#48d1cc',
  mediumvioletred: '#c71585',
  midnightblue: '#191970',
  mintcream: '#f5fffa',
  mistyrose: '#ffe4e1',
  moccasin: '#ffe4b5',
  navajowhite: '#ffdead',
  oldlace: '#fdf5e6',
  olivedrab: '#6b8e23',
  orangered: '#ff4500',
  orchid: '#da70d6',
  palegoldenrod: '#eee8aa',
  palegreen: '#98fb98',
  paleturquoise: '#afeeee',
  palevioletred: '#db7093',
  papayawhip: '#ffefd5',
  peachpuff: '#ffdab9',
  peru: '#cd853f',
  pink: '#ffc0cb',
  plum: '#dda0dd',
  powderblue: '#b0e0e6',
  rosybrown: '#bc8f8f',
  royalblue: '#4169e1',
  saddlebrown: '#8b4513',
  salmon: '#fa8072',
  sandybrown: '#f4a460',
  seagreen: '#2e8b57',
  seashell: '#fff5ee',
  sienna: '#a0522d',
  skyblue: '#87ceeb',
  slateblue: '#6a5acd',
  slategray: '#708090',
  slategrey: '#708090',
  snow: '#fffafa',
  springgreen: '#00ff7f',
  steelblue: '#4682b4',
  tan: '#d2b48c',
  thistle: '#d8bfd8',
  tomato: '#ff6347',
  transparent: '#00000000',
  turquoise: '#40e0d0',
  violet: '#ee82ee',
  wheat: '#f5deb3',
  whitesmoke: '#f5f5f5',
  yellowgreen: '#9acd32',

  // CSS Level 4
  rebeccapurple: '#663399',
})

export type NamedColors = keyof typeof namedColors

// export const getContrastColor = (color: string): string => {
//   const darkContrastColor = 'var(--a-contrast-dark)'
//   const lightContrastColor = 'var(--a-contrast-light)'
//   const threshold = 128

//   // Check if the color is a named color
//   if (color in namedColors)
//     color = namedColors[color as keyof typeof namedColors]

//   // Check if the color is a hex string
//   if (color[0] === '#') {
//     if (color.length === 7) {
//       // #RRGGBB
//       return (parseInt(color.substring(1, 3), 16) > threshold
//               || parseInt(color.substring(3, 5), 16) > threshold
//               || parseInt(color.substring(5, 7), 16) > threshold)
//         ? darkContrastColor
//         : lightContrastColor
//     }
//     else if (color.length === 4) {
//       // #RGB
//       return (parseInt(color[1], 16) * 0x11 > threshold
//               || parseInt(color[2], 16) * 0x11 > threshold
//               || parseInt(color[3], 16) * 0x11 > threshold)
//         ? darkContrastColor
//         : lightContrastColor
//     }
//   }

//   // Check if the color is an RGB or RGBA string
//   if (color.substring(0, 3) === 'rgb' || color.substring(0, 4) === 'rgba') {
//     const parts = color.substring(color[3] === 'a' ? 5 : 4).split(',')

//     return (parseInt(parts[0]) > threshold || parseInt(parts[1]) > threshold || parseInt(parts[2]) > threshold)
//       ? darkContrastColor
//       : lightContrastColor
//   }

//   // Check if the color is an HSL or HSLA string
//   if (color.substring(0, 3) === 'hsl' || color.substring(0, 4) === 'hsla') {
//     const parts = color.substring(color[3] === 'a' ? 5 : 4).split(',')

//     return parseInt(parts[2].substring(0, parts[2].length - 1)) > 50
//       ? darkContrastColor
//       : lightContrastColor
//   }

//   // If the color could not be parsed, return black as the contrast color
//   return darkContrastColor
// }

export function getContrastColor(color: string): string {
  const darkContrastColor = 'var(--a-contrast-dark)'
  const lightContrastColor = 'var(--a-contrast-light)'

  // Check if the color is a named color
  if (color in namedColors)
    color = namedColors[color as keyof typeof namedColors]

  // Check if the color is a hex string
  if (color[0] === '#') {
    if (color.length === 7) {
      // #RRGGBB
      const r = Number.parseInt(color.substring(1, 3), 16)
      const g = Number.parseInt(color.substring(3, 5), 16)
      const b = Number.parseInt(color.substring(5, 7), 16)
      const luminance = 0.2126 * r + 0.7152 * g + 0.0722 * b

      return luminance > 128 ? darkContrastColor : lightContrastColor
    }
    else if (color.length === 4) {
      // #RGB
      const r = Number.parseInt(color[1] as string, 16) * 0x11
      const g = Number.parseInt(color[2] as string, 16) * 0x11
      const b = Number.parseInt(color[3] as string, 16) * 0x11
      const luminance = 0.2126 * r + 0.7152 * g + 0.0722 * b

      return luminance > 128 ? darkContrastColor : lightContrastColor
    }
  }

  // Check if the color is an RGB or RGBA string
  if (color.substring(0, 3) === 'rgb' || color.substring(0, 4) === 'rgba') {
    const parts = color.substring(color[3] === 'a' ? 5 : 4).split(',')
    const r = Number.parseInt(parts[0] as string)
    const g = Number.parseInt(parts[1] as string)
    const b = Number.parseInt(parts[2] as string)
    const luminance = 0.2126 * r + 0.7152 * g + 0.0722 * b

    return luminance > 128 ? darkContrastColor : lightContrastColor
  }

  // Check if the color is an HSL or HSLA string
  if (color.substring(0, 3) === 'hsl' || color.substring(0, 4) === 'hsla') {
    const parts = color.substring(color[3] === 'a' ? 5 : 4).split(',')

    const l = Number.parseInt((parts[2] as string).substring(0, (parts[2] as string).length - 1))

    return l > 50 ? darkContrastColor : lightContrastColor
  }

  // If the color could not be parsed, return black as the contrast color
  return darkContrastColor
}
